hey guys! very new to heros! what are some good guys to have/level to be competitive ? just started and opened some packs...got: Imperial Executioner, Light bringer, Dwarf warrior, Brute. Any of them worth leveling?

hey guys! very new to heros! what are some good guys to have/level to be competitive ? just started and opened some packs...got: Imperial Executioner, Light bringer, Dwarf warrior, Brute. Any of them worth leveling?

Brute = worthless
IE used to be good then falls hard at higher levels
Light Bringer = Great
Dwarf = Great